PlainZIP

Flintstone, MD · standard

ZIP Code 21530

Allegany County, Maryland - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

1,591
11/sq mi
$63,542
Median income
$202,400
Median home value
21.2%
Bachelor's or higher

The verdict

Flintstone pairs a below-median household income with below-median home values, in a rural, homeowner-dominated area.

36th pct
household income, US ZIPs
44th pct
home value, US ZIPs
11
people per sq mi
83%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 21530 against every reporting US ZIP.

ZIP code 21530 covers 146.0 square miles in Flintstone, Allegany County, Maryland (a standard USPS delivery area), with a modest 1,591 residents on file, a density of 11 people per square mile, in the New York time zone.

ZIP 21530 reports a modest median household income of $63,542 (44% below the Maryland average), while per-capita income is $32,301. 18.5% of residents live below the poverty line, and the unemployment rate reads 17.0%. Median home value sits at $202,400 (55% below the state average), median rent at $828 a month, and owner-occupancy at 82.7%.

Educational attainment sits below the national norm: 21.2% of adults hold a bachelor's degree or higher, the median age is 56, and the average commute is -. Beyond these figures, 4 nearby ZIP codes within about 10 miles are surfaced below, along with 6 more sharing Allegany County, letting you compare 21530 to its immediate surroundings rather than a national baseline alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 21530

Top 5 sectors by establishment count in Flintstone, MD

Which industries have the most business establishments in ZIP 21530.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 21530, Flintstone, MD · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

1,591

Population

146.0

Area (sq mi)

11

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 21530?

56.0

Median Age

52.6%

Male

47.4%

Female

0.0%

Foreign-Born

White 99.4%
African American 0.3%
Asian 0.0%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 0.3%
Hispanic or Latino 1.7%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$63,542

Median Household Income

-44% vs state

$32,301

Per Capita Income

18.5%

Poverty Rate

17.0%

Unemployment Rate

How ZIP 21530 ranks nationally

Flintstone, MD household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$63,542 36th percentile higher than 36% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). This entry sits in this band. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 60.2%
Bachelor's Degree or Higher 21.2%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

940

Total Housing Units

648

Occupied Units

292

Vacant Units

2.16

Avg Household Size

Occupancy Type

Owner 82.7%
Renter 17.3%

$202,400

Median Home Value

-55% vs state

$828

Median Rent

1971

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What businesses operate in this ZIP?

Census Bureau data shows 19 business establishments in ZIP 21530, employing approximately 541 people with a combined annual payroll of $20,563,000.

19

Businesses

541

Employees

$20.6M

Annual Payroll

4

Industry Sectors

Industry Establishments % of Total
Transportation and warehousing 4 21.1%
Construction 3 15.8%
Retail trade 3 15.8%
Administrative and support and waste management and remediation services 3 15.8%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 21530 vs 21555 →

ZIP 21530 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 21530 ranks #3 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 21530 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 21530 ranks the highest of 5 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
21555 Oldtown, MD 1,936 7.0 mi
21766 Little Orleans, MD 700 7.9 mi
17211 Artemas, PA 368 8.2 mi
15535 Clearville, PA 2,203 10.4 mi

More ZIP Codes in Allegany County

21502 standard
Cumberland, MD
Pop: 44,400
21532 standard
Frostburg, MD
Pop: 15,620
21562 standard
Westernport, MD
Pop: 3,141
21539 standard
Lonaconing, MD
Pop: 2,819
21545 standard
Mount Savage, MD
Pop: 1,940
21555 standard
Oldtown, MD
Pop: 1,936

Related Areas

Allegany County Flintstone, MD Maryland

Frequently Asked Questions

What county is ZIP code 21530 in? ▼
ZIP code 21530 (Flintstone) is located in Allegany County, Maryland. Allegany County contains multiple ZIP codes, see the full list at /counties/allegany-md.
What is the population of ZIP code 21530? ▼
ZIP code 21530 in Flintstone, MD has a population of 1,591 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 21530? ▼
The median household income in ZIP 21530 is $63,542, which is 17% below the national average of $76,288.
What is the average home value in ZIP 21530? ▼
The median home value in ZIP 21530 is $202,400, which is 27% below the national average of $278,155.
What is the demographic makeup of ZIP 21530? ▼
The largest racial group in ZIP 21530 is White at 99.4%. Hispanic or Latino residents make up 1.7% of the population.
How many businesses are in ZIP code 21530? ▼
ZIP code 21530 has 19 business establishments employing approximately 541 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 21530? ▼
The top industries by establishment count in ZIP 21530 are: Transportation and warehousing (4), Construction (3), Retail trade (3). There are 4 industry sectors represented in total.
What is the education level in ZIP code 21530? ▼
In ZIP code 21530, 60.2% of residents aged 25+ have a high school diploma or higher, and 21.2% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 21530? ▼
In ZIP code 21530, approximately 82.7% of occupied housing units are owner-occupied and 17.3% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 21530? ▼
The poverty rate in ZIP code 21530 is 18.5% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.